To be fair, Vanity Fair did mention the lack of gender diversity in their story:

What's conspicuously missing from late-night, still, is women. How gobsmackingly insane is it that no TV network has had the common sense—and that's all we're talking about in 2015, not courage, bravery, or even decency—to hand over the reins of an existing late-night comedy program to a female person?

And they did mention comedienne Samantha Bee's upcoming TBS late night talk show. She, however, decided to respond directly to the tweet, imagining herself in the picture with the rest of her peers.